BERLIN (AFP) - Bayern Munich manager Pep Guardiola believes winning the German Bundesliga will prove a harder task than lifting the Champions League - something he has achieved twice with Barcelona, he said on Friday.

"The most prestigious title is the Champions League but the most important and most difficult is the German championship," Guardiola told reporters.

Bayern, unbeaten in domestic league action, are a stunning 16 points clear at the top of the Bundesliga and have a foot in the quarter-finals of the Champions League after beating Arsenal 2-0 away on Wednesday.

"The Champions League is like a good meal in a good restaurant. The Bundesliga, it's like eating pizza or hamburger every day," he said.

In the German top-flight, "you have to be focused every day. It's difficult", the Spanish coach, in his first season with the German giants, added.

Guardiola, who has a hard act to follow after Bayern won the treble of league, cup and Champions League last year, said they could repeat their Bundesliga triumph "within five or six matches".

But despite an impressive run of 13 straight wins, Guardiola stressed "you shouldn't think too much about that".

"We'll end up losing one as well, I'm sure of that."

Bayern's next challenge is away on Sunday evening at Hannover 96, who are currently 11th in the Bundesliga.